Jika f(x)=–2x²+2x+1, g(x)=3x-1.tentukan a. (fog) (x) dan (gof) (x)

a. (fog)(x)
= - 2(3x-1)² + 2(3x-1) + 1
= - 2(9x²-6x+1) + 6x-2 + 1
= -18x²+12x-2 + 6x-2 + 1
= -18x² + 18x - 3

b. (gof)(x)
= 3(-2x²+2x+1) - 1
= -6x²+6x+3 - 1
= -6x²+6x+2